Senior Python Developer (With Java)

Carlos Goncalves; Toronto; On-site; CAD 82,656 - 110,208; Full time

Job summary

Carlos Goncalves is seeking a Senior Python Developer (With Java) for a Toronto-based engagement. The role is hybrid—in-office 4 days per week—on a 6‑month contract with possible renewal. Target rate range: $60‑80/hr on a B2B basis, reflecting senior enterprise development experience.

You will own backend services, RESTful APIs, cloud-native apps on AWS, CI/CD, testing, and data workflows, collaborating with stakeholders and delivering production‑ready solutions with minimal direction.

Qualifications

• Must have consulting, advisory, or client-facing delivery experience.
• Ability to operate effectively in ambiguous environments.
• Proven independent delivery without close supervision.
• Strong Python experience in enterprise environments (5+ years); knowledge of Java (2 years).
• Experience with SQL queries; Docker/Kubernetes.
• Strong cloud experience (AWS).
• Strong unit and integration testing practices.
• Experience with message queues (e.g., SQS, Kafka).

Responsibilities

• Own timelines and deliverables, proactively managing scope, dependencies, and execution risks.
• Independently design and deliver software solutions by engaging stakeholders and challenging assumptions.
• Build backend services and RESTful APIs aligned to designs.
• Develop cloud-native applications (AWS preferred).
• Implement workflow automation and data pipelines where needed.
• Contribute across the full software development lifecycle, including CI/CD.
• Ensure solutions are production-ready, including testing, documentation, and handover.
• Act as a reliable execution partner, escalating issues early when required.

Job description

Senior Python Developer (With Java)

Global IT services firm for a leading investment/wealth management services firm. Client location: downtown Toronto, Ontario, close to TTC and GO Service. Hybrid – In Office 4 days per week. Contract – 6 months, possible renewal. Target rate range: $60‑80/hr on B2B.

Project Description

We are seeking a hands‑on talent to support delivery within the Total Fund Management Portfolio Management Technology team. This role is suited for an experienced, self‑directed individual who can operate with a high degree of autonomy, take ownership of outcomes, and deliver working solutions with minimal day‑to‑day oversight. It is not a role for someone who requires detailed task breakdowns or constant direction. Once objectives and constraints are clear, the candidate is expected to independently drive work to completion, proactively manage risks, and communicate progress effectively.

Responsibilities

• Own timelines and deliverables, proactively managing scope, dependencies, and execution risks
• Independently design and deliver software solutions by engaging stakeholders and challenging assumptions
• Build backend services and RESTful APIs aligned to those designs
• Develop cloud‑native applications (AWS preferred)
• Implement workflow automation and data pipelines where needed
• Contribute across the full software development lifecycle, including CI/CD
• Ensure solutions are production‑ready, including testing, documentation, and handover
• Act as a reliable execution partner, escalating issues early when required

Mandatory Skills

• Prior consulting, advisory, or client‑facing delivery experience
• Ability to operate effectively in ambiguous environments
• Proven independent delivery without close supervision
• Strong Python experience in enterprise environments (5+ years) + Knowledge in Java (2 years)
• Experience with SQL queries, Docker/Kubernetes
• Strong cloud experience (AWS)
• Strong unit and integration testing practices
• Additional experience: message queues (e.g., SQS, Kafka, etc.)

Nice‑to‑Have Skills

• Experience building low‑latency applications and CI/CD pipelines
• Capital Markets domain knowledge
• Trading / Portfolio Management experience is preferred